Proving once again that they're streets ahead, members of the ever-expanding musical video collective cdza pay tribute to the victims of 9/11 by leading a musical tour of Lower Manhattan.

A partial track list of the street signs they sing can be found here. The second part is here. And, of course, the coda is Jay-Z and Alicia Keys' "Empire State of Mind."

[H/T: Tastefully Offensive]